Sayap kanal wikipedia bahasa indonesia, ensiklopedia bebas. The channel wing concept, first proposed by willard custer in the late 1940s, is a promising candidate for efficient vstol performance. It utilised an adapted fuselage and tail assembly of a baumann brigadier. The wing configuration of a fixed wing aircraft including both gliders and powered aeroplanes is its arrangement of lifting and related surfaces aircraft designs are often classified by their wing configuration. She graduated from hagerstown high school in 1940 and hagerstown business college. For example, the supermarine spitfire is a conventional low wing cantilever monoplane of straight elliptical planform with moderate aspect ratio and slight dihedral. Custer, who was actually a relative of the illfated gen.
Design of the lip wing lip wing system consists of a shrouded propeller and an elliptical curved wing that aerodynamically matches the intake of the shroud basically increasing the effective area of the shrouds lip, hence the name lip wing. Could a blown wing ever be powerful enough to lift an. Custer channel wing corporation, of enid, oklahoma. The custer channel wing is a wingpropeller arrangement designed to produce lift statically or to augment the normal lift when the vehicle has some forward. For example the spitfire wing may be classified as a conventional low wing cantilever monoplane with straight elliptical wings of moderate aspect ratio and slight. As,a result of publication given tests of the custer.
The cfd simulations presented here show that the lif t in a custer channel wing is the result of the accelerated air over the curved surface of the a irf oil i. An analitical and numerical study of the custer channel wing configuration. Nasa unveils shapechanging birdlike plane wing from the section technology these are external links and will open in a new window share this with facebook share this with twitter share this with messenge. As the name implies, the channel wing contains a semicylindrical or ushaped channel. Would truncated, cambered airfoils work as wings on a. The custer channel wing is unconventional in that its wing channels replace such conventional aerodynamic devices as wing flaps and slots to provide required lift. Langley fullscaletunnel tests of the custer channel wing.
George custer, hoped to exploit the phenomenon to develop short takeoff and. Applications of circulation control technologyindex. The custer channel wing was a series of americanbuilt experimental aircraft designs of the 1940s and 1950s incorporating a halfbarrel shaped section to. Flight tests of an airplane incorporating two of these channel wings were conducted first by the inventor.
The custer channel wing was a series of americanbuilt. All structured data from the file and property namespaces is available under the creative commons cc0 license. Channel wing as a potential vtolstol aerovehicle concept. The first example n6257c was designed by custer but built by the baumann corporation of santa barbara, california. Walt boyne the custer channel wing story, airpower magazine, volume 7 no. Figure 1 shows the arrangement in custer s final design.
The inspiration to the channel wing concept came in 1925. Flown since 1942 in prototype form only, most notably on the custer channel wing aircraft. The wing configuration of a fixedwing aircraft is its arrangement of lifting and. But the channels, which seem out of place, if not freakish, in an airplanes wing, generate high levels of lift, and that opens up. In the custer system, the powerplant is suspended in the channel with the propeller at the trailing edge. Is there an idiomatic way to merge by index lists of the same length. Haber, yair azrieli academic college of engineering azarazar, michael azrieli academic college of engineering kamins, meir azrieli academic college of engineering zilberman, moshe azrieli academic college of engineering 17. Aiaa 20022929 development of pneumatic channel wing poweredlift advanced superstol aircraft robert j. Channel wing designet var i lang tid ikke vist at fungere i praksis, selvom custer. This airplane looks weird but it actually few extremely well. Willard custer explored enhancing the lift by wrapping the wing around the lower half of the propeller arc with his custer channel wing aircraft. Use of custer channel wingswing ducts on small uavs use of custer channel wingswing ducts on small uavs the strong variations in lift that occur with changes in forward speed lead to one of the fundamental difficulties in aircraft design. Test of two custer channel wings having a diameter of. Files are available under licenses specified on their description page.
The purpose of this paper is to offer an analytical optimization of the custer channel wing ccw and. Pdf channel wing as a potential vtolstol aerovehicle. He was a great grandnephew of george armstrong custer. The 20knot humanpowered water craft hp is reprinting, in parts, alec brookspaper on highspeed hydrofoils, which was given at the third ihpva scientific symposium.
Willard ray custer, born june 6, 1899 in warfordsburg, pennsylvania, died december 25, 1985 in hagerstown, maryland was an american engineer and aircraft visionary, inventor of the channel wing concept. Discussion custer channel wing ccw1, ccw2 and ccw5 rc. Pdf an analitical and numerical study of the custer. A number of designers have attempted to tackle this problem with various forms of powered lift augmentation. As a result of this paper, the article in the scientific american in december 1986, and demonstrations by and interviews of allan ab. Click the link below to go to the page with more info.
Memorandum presenting testing of an experimental custer channel wing airplane in the fullscale tunnel to investigate the lift characteristics of a channel propeller combination and the flow phenomena in and about a channel wing. Englar georgia tech research institute gtri aerospace, transportation and advanced systems laboratory atlanta, ga 303320844 and bryan a. Two promising technologies to evolve from earlier stolvstol. Hence, he came up with the idea of the channel wing. A channel wing has an upwardly opening semicylindrical channel placed near the aircraft fuselage. Use of custer channel wingswing ducts on small uavs. A channel wing has an upwardly opening semicylindrical. The channel wing is an aircraft wing principle developed by willard ray custer in the 1920s. Willard custers channel wing looked like a mistake.
This paper reexamines the idea of the custer wing duct, also known as a channel wing, here applied to small unmanned air vehicles uavs. Willard custer devised his unique channel wing arrangement in the early 1930s and worked on it for decades, constructing several successful flying prototypes. Custer channel wing corporation 1960s stock certificates. The channel wing is formed by merging the channel and a fixed wing portion that extends from one side of the channel. Figure 1 3view and inflight photo of 1960s custer channel wing aircraft refs. A district judge is vested with a wide discretion when an injunction is sought to prevent future violations of the securities laws, sec v. Englar is combining the concept with other techniques to generate the extreme lift needed to raise a. The most important part of the wing consists of a halftube with an engine placed in the middle, driving a propeller placed at the rear end of the channel formed by the halftube.
Hopflyt is an interesting approach to combining the channel thrust of the custer channel wing with electric vtol capabilities. The advantage of this arrangement is that the propeller produces a highspeed flow, known as the propeller slipstream, through the channel generating greater lift. The structure of the securities act of 1933 and the securities exchange act of 1934 confirms that the commission need not prove scienter in an injunc tive proceeding 61 v. Imposition of a scienter standard in commission injunctive proceedings would undermine the. It has been shown that the sensitivity of wakes to merge and dissipate is sensitive to small changes in the spanwise. The channel wing includes a section of the wing forming a partial duct around or immediately behind a propeller. Willard custer came up with the idea of reversing the normal method of powered flight. Use of custer channel wingswing ducts on small uavs core. Securities and exchange commission brief summary of financial proposals filed with and actions by the s. Recent patents on mechanical engineering channel wing as a. Iii 12 we turn now to the specific paragraphs of the order. During the early 1950s, custer formed the custer channel wing corporation to develop and build the fiveseat ccw5 design which was intended for commercial sale. The channel wing, which takes its name from the semicircular trough each wing forms below the engine, is a 1940s design that didnt get past a prototype. Custers channel wing in micro form for living room flying.
An aircraft includin a wing provided with references cited multiple spaced apart channels arranged in the following references are of record in the dam and opening upwardly, and a propeller for me of this patent. The sheme of custer channel wing functionning at v0 and. The custer channel wing is a wing propeller arrangement designed to produce lift statically or to augment the normal lift when the vehicle has some forward velocity. Custer channel wing, until his retirement, then worked for zion evangelical church until her retirement.
There was a plane that i have no idea what it was called and it was definitely in rcm because i remember reading about it at school we had a subscription to the magazine in the library and it had a cylindrical wing. Campbell nasa langley research center larc configuration aerodynamics branch, ms286 hampton, va. The lift comparison of the same model with combine wing. Could a blown wing ever be powerful enough to lift an aircraft at zero forward velocity. Flown since 1942 in prototype form only, most notably on the custer channel. He never gave up trying to sell the idea to the mainstream aeronautical industry. Fixed wing aircraft, popularly called aeroplanes, airplanes, or just planes, may be built with many wing configurations this page provides a breakdown of types, allowing a full description of any aircrafts wing configuration. Hopflyt is a modern attempt to revive the custer channel wing.
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